If you see a delay of a set amount after conversion, try AviMux_Gui. Even though the origonal file may show no delay when played on your pc, AviMux_Gui will show you the delay in ms: http://www.alexander-noe.com/video/amg/ Drag your file into the top window, highlight it and select generate data. In the lower window, select audio and any delay will appear in a box to the right. If anything other than 0 shows, select start which lets you name the new file and put it where you want and you'll have a new file to use in aminute or 2. But, this only applies to Avi movies that display a constant delay after conversion.